How do I create a negative of an svg file

I converted an image I drew to an svg file. I engraved it on wood and looks great, but I want to engrave it on glass, and I want to engrave the negative of the image. Not sure how to do it bcs it doesn’t give the option during set up like an image normally does. Help!

Yes! That’s what I want to do, I thought that just changed my view not that the file became negative.

You are correct. What you see above is only a change to how we represent the view in ‘Preview’, so you can more easily visualize the laser effect on dark materials. This does not change your output.

Is this a ‘Fill’ layer you want to make negative? If so, this should help in understanding how LightBurn uses boundaries to define what get filled.

If the SVG just contains an image, then you’ll need to click the ‘Negative Image’ button in the image layer, here:

In 1.3.0.1 I cannot find this button with a svg. Did it move?

It’s still there for an actual image.

Don’t see it available for SVG’s.

May or may not work for what you want but…
Select your SVG and do an offset with 0.0 distance.
I tried it on a simple vector and it worked.
Probably depend on how complex your SVG is.